"One can see the free software movement as a precusor for a "free hardware" or "free wetware" movement--one that will provide free libraries of designs for biological or nanotechnological products that replicators can be programmed to churn out."
- Charles Stross

Among the various inventions which make use of a Slaver stasis field, the variable-sword was one of the more elegant. Very compact, which was very handy for the kzin who wielded it.

"I have a variable-sword," said Speaker-to-Animals. "I urge calm." The kzin stood against a curved wall. In one clawed fist he held something like an oversized jump rope handle. Ten feet from the handle, held expertly at the level of the kzin's eyes, was a small, glowing red ball. The wire which joined ball to handle was too thin to be visible, but Louis didn't doubt it was there. Protected and made rigid by a Slaver stasis field, the wire would cut through most materials including the back of Louis's crash couch.